宁夏太阳能资源的气候学计算及时空分布特征

Climatic calculation of solar energy in Ningxia and its temporal and spatial distribution

为了研究宁夏太阳能资源的开发、利用情况,用实测资料和统计回归方法计算分析了宁夏各地的太阳能资源时空分布状况.结果表明,宁夏太阳辐射为5 000-6 100 MJ(/m2.a),分布特点是北部多于南部,灵武、同心太阳辐射最大,达6 100 MJ(/m2.a)以上,隆德、泾源相对较少,中部干旱带以北地区太阳辐射较大且分布较均匀.6月份各地月总辐射最大,12月份最少,日照时数2 300-3 100 h/a,其时空分布与太阳辐射呈相同的趋势.说明宁夏是我国太阳辐射的高能区之一,其可利用潜力巨大.

By using the observations and statistic method, we calculated the solar radiation in Ningxia and analyzed its temporal and spatial distribution, and provided the scientific basis for the development and use of Ningxia solar energy. The results show that the solar radiation in Ningxia is 5 000-6 100 MJ/（m^2·a）, it is richer in north than in south, and is richest in Lingwu and Tongxin, where are up to over 6 100 MJ/（m^2·a）, it is relatively poor in Longde and Jingyuan, and is rich and distributes uniformly in the region north to the central arid area. The solar radiation in June is the most , and in December is the least. The annual sunshine duration is 2 300-3 100 h, and its temporal and spatial distribution trend is the same as solar radiation. This shows that Ningxia is one of the regions where have high solar radiation energy in China, and has a huge potential on solar energy usage.